"HUARAZ, Peru -- In its heyday, the Pastoruri glacier in central Peru, drew daily throngs of tourists packed into dozens of double-decker buses 16,000-feet (5,0000-meters) high into the Andes to ski, build snowmen and scale its dizzying peaks."

"It was so bright with ice and snow that sunglasses were mandatory.

But in less than 20 years, including at least 10 of the hottest on record, Pastoruri has shrunk in half, and now spans just a third of a square mile (0.9 square km)."